CN2213209Y - Theft-proof door lock with alarm device - Google Patents

Theft-proof door lock with alarm device Download PDF

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Publication number
CN2213209Y
CN2213209Y CN 95205294 CN95205294U CN2213209Y CN 2213209 Y CN2213209 Y CN 2213209Y CN 95205294 CN95205294 CN 95205294 CN 95205294 U CN95205294 U CN 95205294U CN 2213209 Y CN2213209 Y CN 2213209Y
Authority
CN
China
Prior art keywords
lock
door
bolt
breechblock
guide pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 95205294
Other languages
Chinese (zh)
Inventor
杜秋发
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 95205294 priority Critical patent/CN2213209Y/en
Application granted granted Critical
Publication of CN2213209Y publication Critical patent/CN2213209Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Burglar Alarm Systems (AREA)

Abstract

The utility model relates to a theft-proof alarm door lock. The utility model is composed of a lock, a lock bolt, a contact head, a contact switch and a guide tube, wherein, the lock bolt is connected with a lock tongue of the lock, the lock bolt is composed of a T-shaped bolt body and three or more than three bolt heads, and the bolt heads are connected with a connecting rod of the T-shaped bolt body. The bolt head is positioned in the guide tube, the guide tube is fixedly connected with the square tube of the side of the door, and the guide tube is a trumpet shape. The utility model has the advantages that the anti-prying function with multi-point is realized, the good anti-prying performance is realized, and the high reliability of an alarm system is realized.

Description

Theft-proof door lock with alarm device
The utility model relates to a kind of door lock, particularly a kind of burglar-proof alarm door lock.
Existing burglar-proof alarm door lock even double lock tongue lock or even three dead bolts lock also all are to concentrate in the middle of the edge a bit, prizes down with brute force the robber, and dead bolt is easily deviate from doorframe or the lock body near the door limit is come off from door in strong destruction.In addition, be installed in the alarm triggering device poor reliability on dead bolt or the bottom-locking plate, easily in small vibration, trigger the false alarm or the police that only just can transmit messages after lock is destroyed take place.
The purpose of this utility model is to provide a kind of multiple spot pick-proof, the burglar-proof alarm door lock that the warning reliability is high.
The utility model is to realize like this, comprise lock, lock bolt, lock bolt is connected together mutually with the dead bolt of lock, and wherein lock bolt is made of T shape breechblock and the door bolt head more than three or three that evenly is connected on the T shape breechblock connecting rod, the door bolt head places in the guide pipe, and guide pipe is fixed on the square tube on a limit.
In order to make dead bolt drive the lock bolt activity freely, the traverse bar of T shape breechblock below is provided with supporting guide wheel.
In addition, the utility model also is provided with contact, and contact switch, contact place on the breechblock near door bolt head, and position of contact when locking a door, the position of contact switch is corresponding, is horn-like with a door bolt guide pipe endoporus that matches.
When using the utility model, drive dead bolt with key and will fasten a door bolt receiving orifice on the head insertion doorframe, this moment is if promote door gently, because the rigidity of breechblock, contact is to the contact switch effect, but if robber's sliding door or when forcing open the door with instrument, the shearing force that sled power produces acts on the door bolt head outward firmly, make door bolt head move and drive in the breechblock curvedly, make the contact on the breechblock touch contact switch and warning device is reported to the police to the horn-like hole wall of guide pipe.
The utility model compared with the prior art; because having adopted multiple spot door bolt head locks a door; thereby increased the difficulty that the robber pries open all door bolt heads widely; and lock body joins by breechblock and door bolt head; can make lock body away from the door limit, protect lock body not to be subjected to robber's destruction, in addition; this lock also has burglar alarm reliability height, the advantage of no false alarm.
Fig. 1 is an organigram of the present utility model;
Fig. 2 is that the A of Fig. 1 is to schematic diagram.
Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:
As shown in Figure 1, the utility model is mainly by lock 1, and with the lock bolt 3 that the dead bolt 2 of locking 1 joins, guide pipe 4, contact 5, the contact switch 6 that is positioned at the control warning device on the door constitutes.Wherein lock bolt 3 is made of T shape breechblock 7 and three door bolts 9 of evenly being connected on the connecting rod 8 of T shape breechblock 7.Door bolt 9 places in the guide pipe 4, and guide pipe 4 is fixed on the square tube 11 on a limit 10, to improve the pick-proof performance of door bolt head.Also be provided with reinforcing square tube 12 on the next door of square tube 11, the sled curved door bolt head that makes then in door edge deviate from the door bolt receiving orifice 14 on the doorframe 13 and opened door, reinforce the effect that square tube 12 also plays limit catch 9 stroke simultaneously to prevent the robber.
In order to improve the reliability of warning system, contact 5 place with fasten with a bolt or latch 9 be connected on mutually in the middle of and on the following breechblock, the position of the contact 5 of the position of contact switch 6 when locking a door is corresponding, is horn-like with the endoporus of door bolt 9 guide pipe that match 4, and T shape breechblock 7 is made by Ductile Metals.
In order to make dead bolt drive lock bolt 3 activities freely, below the traverse bar 15 of T shape breechblock 7, be provided with the supporting guide wheel 16 that has bearing.

Claims (3)

1, a kind of burglar-proof alarm door lock, comprise lock, lock bolt, guide pipe, the dead bolt that it is characterized in that lock bolt and lock joins, lock bolt is made of T shape breechblock and the door bolt head more than three or three that evenly is connected on the T shape breechblock connecting rod, the door bolt head places in the guide pipe, and guide pipe is fixed on the square tube on a limit.
2, burglar-proof alarm door lock according to claim 1 is characterized in that being provided with contact on the breechblock near door bolt head, is provided with contact switch with corresponding place, the position of contact when locking a door, and is horn-like with a door bolt guide pipe endoporus that matches.
3, burglar-proof alarm door lock according to claim 1 and 2 is characterized in that the traverse bar below of T shape breechblock is provided with supporting guide wheel, and the square tube next door is provided with the reinforcing square tube.
CN 95205294 1995-03-18 1995-03-18 Theft-proof door lock with alarm device Expired - Fee Related CN2213209Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 95205294 CN2213209Y (en) 1995-03-18 1995-03-18 Theft-proof door lock with alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 95205294 CN2213209Y (en) 1995-03-18 1995-03-18 Theft-proof door lock with alarm device

Publications (1)

Publication Number Publication Date
CN2213209Y true CN2213209Y (en) 1995-11-22

Family

ID=33857573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 95205294 Expired - Fee Related CN2213209Y (en) 1995-03-18 1995-03-18 Theft-proof door lock with alarm device

Country Status (1)

Country Link
CN (1) CN2213209Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101575935B (en) * 2009-05-31 2011-02-16 杜永发 Improved structure of burglarproof door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101575935B (en) * 2009-05-31 2011-02-16 杜永发 Improved structure of burglarproof door

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee